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Journal article
Chemical preintercalation synthesis approach for the formation of new layered tungsten oxides
Journal of materials science, v 57(16), pp 7814-7826
19 Apr 2022
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Tungsten oxide, WO3 center dot nH(2)O, is a unique layered oxide material that offers enhanced performance in electrochromic and energy storage applications. Herein, we report the formation of a new, never previously synthesized, Na-containing layered tungsten oxide phase, Na0.20WO3 center dot 0.81H(2)O, using a chemical preintercalation approach. The structure and composition of this novel phase were investigated via microscopy, spectroscopy, and diffraction methods. Electrochemical cycling of Na0.20WO3 center dot 0.81H(2)O electrodes revealed initial discharge capacities of 37.43 mAh g(-1), 480.8 mAh g(-1), and 253.2 mAh g(-1) in aqueous H2SO4 cells (potential window of - 0.2-0.8 V vs. Ag/AgCl), non-aqueous Li-ion cells (potential window of 0.1-4.0 V vs. Li/Li+), and non-aqueous Na-ion cells (potential window of 0.1-4.0 V vs. Na/Na+), respectively. Additionally, a reversible, pressure-induced color change from pale yellow to dark brown/black was observed for the Na0.20WO3 center dot 0.81H(2)O sample when it was placed under pressures of 1000 psi or higher. Our results demonstrate the viability of chemical preintercalation synthesis approach to produce new oxide phases with interesting functional properties.
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Details
- Title
- Chemical preintercalation synthesis approach for the formation of new layered tungsten oxides
- Creators
- Mallory Clites - Drexel UniversityAdam Blickley - Drexel UniversityDavid A. Cullen - Oak Ridge National LaboratoryEkaterina Pomerantseva - Drexel UniversityOak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Details
- Journal of materials science, v 57(16), pp 7814-7826
- Publisher
- Springer Nature
- Number of pages
- 13
- Grant note
- DMR-1609272; DMR1752623 / National Science Foundation; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000784275800003
- Scopus ID
- 2-s2.0-85128405584
- Other Identifier
- 991019168598704721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary